An acoustic diode ?

[Andre Kesteloot]

On 8/5/2011 13:10 PM, fgentges at mindspring.com wrote:
> Interesting.
>
> Suppose I have two rooms, A and B which are isolated from each other.  
> I put a microphone in room A, an amplifier, and a loudspeaker in room B.
>
> We can yell in room B and people in room A will not hear us  while a 
> person speaking in room A is heard in room B.
>
> Isn't this an acoustic diode like the article describes except I use 
> electronics instead of funny little spheres?
>
> Frank K0BRA
>
> On 8/5/2011 12:38 PM, Andre Kesteloot wrote:
>> http://www.elektor.com/news/acoustic-diode-developed.1904007.lynkx?utm_source=UK&utm_medium=email&utm_campaign=news 
>>
Frank,
you totally missed the point: this is NEW technology, hence much more 
expensive
  More research is needed .
:-)
André